<template>
    <div class="menu">
        <el-aside width="200px">
            <el-menu
                default-active="2"
                class="el-menu-vertical-demo"
                @open="handleOpen"
                @close="handleClose"
                background-color="#2578b5"
                text-color="#fff"
                active-text-color="#ffd04b">
                <el-submenu index="1">
                    <template slot="title">
                    <i class="el-icon-location"></i>
                    <span>导航一</span>
                    </template>
                    <el-menu-item-group>
                    <template slot="title">分组一</template>
                    <el-menu-item index="1-1">选项1</el-menu-item>
                    <el-menu-item index="1-2">选项2</el-menu-item>
                    </el-menu-item-group>
                    <el-menu-item-group title="分组2">
                    <el-menu-item index="1-3">选项3</el-menu-item>
                    </el-menu-item-group>
                    <el-submenu index="1-4">
                    <template slot="title">选项4</template>
                    <el-menu-item index="1-4-1">选项1</el-menu-item>
                    </el-submenu>
                </el-submenu>
                <el-menu-item index="2">
                    <i class="el-icon-menu"></i>
                    <span slot="title">导航二</span>
                </el-menu-item>
                <el-menu-item index="3" disabled>
                    <i class="el-icon-document"></i>
                    <span slot="title">导航三</span>
                </el-menu-item>
                <el-menu-item index="4">
                    <i class="el-icon-setting"></i>
                    <span slot="title">导航四</span>
                </el-menu-item>
            </el-menu>
        </el-aside>
    </div>
</template>
<script>
    export default {
        data() {
            return {}
        },
        methods: {
            handleOpen(key, keyPath) {
                console.log(key, keyPath);
            },
            handleClose(key, keyPath) {
                console.log(key, keyPath);
            }
        }
    }
</script>
<style lang="scss">
.menu {
    .el-aside {
        height: 100%;
        .el-menu {
            height: 100%;
        }.el-submenu .el-menu-item {
            min-width: 0;
        }
    }
}
</style>